CVE-2022-40977: pilz pasvisu Path Traversal

Vulnerability summary

CVE-2022-40977 is a high (CVSS 7.5) Path Traversal vulnerability in pilz pasvisu. EPSS estimates a 0.92% chance of exploitation in the next 30 days, higher than 59.5% of scored vulnerabilities.

Timeline

1. 24-11-2022
   PublishedVulnerability first disclosed.
2. 24-04-2025
   Last modifiedVulnerability information updated.

Description

A path traversal vulnerability was discovered in Pilz PASvisu Server before 1.12.0. An unauthenticated remote attacker could use a zipped, malicious configuration file to trigger arbitrary file writes ('zip-slip'). File writes do not affect confidentiality or availability.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.